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The Selection System of Silviculture in Spruce-Fir Stands--Procedures, Early Results, and Comparisons with Unmanaged Stands

机译：云杉 - 林分林中森林培育的选择体系 - 程序，早期结果和与非管理林分的比较

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Early results after 20 years of record keeping indicate that spruce-fir stands will respond to the selection system of silviculture. Stand quality is improved, species composition can be altered, diameter-class distribution approaches a stated goal, stand density is controlled, and yields are increased. Selection silviculture in spruce-fir can now be compared to early results from unregulated harvesting (commercial clearcutting) and no management for wood products.

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作者
Frank, R. M. ; Blum, B. M.;
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年度 1978
页码 1-20
总页数 20
原文格式 PDF
正文语种 eng
中图分类工业技术;
关键词
Fir trees; Forestry; Selection; Yield; Density(Mass/volume); Comparison; Management; Harvesting;

机译：杉树;林业;选择;产量;密度（质量/体积）;比较;管理;收获;

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The Selection System of Silviculture in Spruce-Fir Stands--Procedures, Early Results, and Comparisons with Unmanaged Stands

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